Transforming Data Standards: Tweed Shire Council’s Successful Migration to GDA2020 with Open Spatial
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Transforming Data Standards: Tweed Shire Council’s Successful Migration to GDA2020 with Open Spatial

Customer

The Tweed Shire Council is a local government area located in the Northern Rivers region of New South Wales, Australia. The council is responsible for providing a range of services to the community, including water, sewer and stormwater, waste management, planning and development, road maintenance, and community facilities. The council aims to provide high-quality services to its residents and visitors, and to promote a safe, healthy, and sustainable community. The council also works closely with other organizations and agencies to address local issues and to support the growth and development of the Tweed region.

Context

The Geocentric Datum of Australia (GDA) is a coordinate system used for mapping and surveying in Australia. The current version of the datum, GDA94, was introduced in 1994 and has been in use for over 25 years.  

The development of a new datum, called GDA2020, was required due to:

Approximate shift from GDA94 to GDA2020 locations across Australia.
(from https://www.icsm.gov.au/gda2020)

This new datum will replace GDA94 and will provide improved accuracy and consistency for mapping and surveying in Australia. The change from GDA94 to GDA2020 requires updates to mapping software and data.

Challenges


Distortion component across the EAST sub grid.  Units are in meters

Innovations/Results

“Working with Open Spatial to undertake the GDA2020 transformation made the process seamless. The pre-planning provided by the Open Spatial team was clear and concise which made it a stress-free project for the GIS staff.” – Sheree Scott, Tweed Shire Council, Acting GIS Supervisor

Solution

Tweed Shire Council greatly increased the quality of their data through the successful upgrade from Geocentric Datum of Australia (GDA) 94 to GDA2020. Open Spatial guided Tweed Shire Council through the data transformation process as well as allowed them to maintain access to their GDA94 data for future reference.

Open Spatial implemented a new Oracle instance to serve as a future production environment where Tweed Shire Council could test all its information as it migrates to the new standard. Upon setting up the new environment, Open Spatial guided Tweed Shire Council through the go-live, refreshing schemas from the GDA94-based production environment to the new GDA2020 production environment, ensuring the proper execution of all transformation scripts, connections to integrated systems, as well as guaranteeing that all connected systems know they are now reading GDA2020 data.

Upon finalizing the transformation, the post-project support team ensured that all outstanding issues were resolved, and systems were functioning as expected. Migration of data from GDA94 to GDA2020 provides the most accurate foundation for Tweed Shire Council’s data and its future planning.

Open Spatial is a geospatial leader in Australia’s GIS industry and has worked closely with Tweed Shire Council since 2012, to ensure accurate and timely data, using the most up-to-date standards.



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